Vise.



P'ATBNTED MAR. s1, 1950s.

0.-' W. ORVIS.

VISE.

FILED UNITED STATES PATENT OFFICE.

CHARLES XV. ORVIS, OF WVESTPLAINS, MISSOURI.

VISE.

SPECIFICATION forming' part 0f Letters, Patent NO. 723,9D5, dated March 31, 1903. Application iiled September l1, 1902. Serial No. 122,968. (No model.)

T0 a/ZZ whom it may oon/cern: v Be it known that I, CHARLES W. ORvIs, citizen of theUnited States, residing at Westplains, in the county of Howell and State of Missouri, have invented certain new and useful Improvements in Vises; and I do hereby declare the following'to be a full, clear, and exact description of the invention, such as will enable others skilled inthe art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this speoiiication.

This invention-relates to vises, and is designed particularly for carpenters and blacksmiths to hold their work. Speaking genen ally, it embodies two spring-jaws, which may be brought together by the pressure of a novel arrangement of levers and which when clamped upon a piece of material will hold by friction engagement of parts connected to the lever.

In the accompanying drawings, Figurel is a side elevation. Figs. 2 and 3 are respectively perspective views of the device. Fig. 4 is a perspective viewfoa modification which is particularly suitable for'c'arpenters use.

Referring specifically to the drawings, 1 indicates a base-block, to the ends of which the lower ends of the jaws 2 are secured. These jaws clamp at the top and are of sufficient height to be convenient for the workmen. They are bolted or otherwise firmly secured to the base-block andincline upwardly to-4 ward eachother. The clamping action is effected by means of a cross-bar 4, which eX- tends through slots 2, formed in each of the jaws. The cross-bar is headedLas at 4a, and the heads slide in ways 2b, formed adjacent to the slots for that purpose. The heads'are beveled, as at 4b, vto facilitate the sliding action. The cross-bar joins'to a bar 4c, which moves vertically between the jaws and through a guide-opening la, formed in the base-block. At the topof the bar 4 is a head 4d, which is joined to the operating-lever 7 by means of links 5 and 6. The link 5 is joined to the head 4d by a bolt 5, the links 5 and 6 by a bolt 6, and the link 6 and the lever 7 by a bolt 7a. These bolts are loose enough to allow sufficient play for the movement of the parts, and the connections between the links 5 and 6 and the link 6 and the'lever 7 are adjustable by means of a series of boltholes, as shown. The lever 7a is fulcrumed to a block l5, which is firmly secured to one of the jaws.. The link 5 slides in a groove in' (Illustrated provide the additional parts indicated in Figs. 1, 2, and 3. These parts comprise bars 10, which are pivotally hung from each side of the head 4d, between the jaws. These bars are beveled at their lower ends to strike upon inclines 11, setupon the base-block.

A pair of levers 13 are pivoted at 13a to one of` the jaws and extend across at an incline and beyond the other.jaw. Their free ends engage under a plate 8, which is bolted to the sliding link 5. At 10a are pins which project from the bars 10 under and' in contact with the'levers 13. When the vise is operated by -means of the lever 7, the bars 10 are swung sidewise by reason of the contact of their lower ends with the inclines 11. This forces the pinsrlO in friction-binding engagement with the levers 18, the levers being properly shaped, as at 13", to accommodate the movement. At the same time the i -levers are forced down'by the movement of the plate 8, which has a wedge action between the jaw on which it slides and the levers 13. The plate is recessed andbeveled at 8a to embrace and provide a wedge engagement with the levers. The friction of the heads 4? in the Ways 2b and of the pins 10a against the levers 13 and of the plate 8 between the levers 13 and the jaw is sufficient to eect a secure clamping action, which will hold the work` firmly.

' All parts of this devicev except the bolts Amay be formed of wood, and no special parts or castings are required, and it vmay be constructed at small expense by any one of ordi; nary skill.

What I claim as new is- 1. In a vise, the combination with the slot- ICQ ted jaws, of the cross-bar extending through the slots and having heads which slide against the back of the jaws to close the same, and a wedge between the jaws to open them and Vmeans to raise and lower the cross-bar, substantially as described.

2. In a vise, the combination with the baseblock and the opposing inclined jaws secured thereto, of the cross-bar bearing against the back of each jaw and slidable thereon and having a wedge between the jaws to open them, and a lever connected to the cross-bar to raise and lower the same, substantially as described.

3. In a vise, the combination with the jaws, of the sliding cross-bar engaging the back of each jaw to bring them together, a lever connected to the cross-bar to raise and lower the same, the bars hung from the cross-bar between the jaws and having projections, and

the levers actuated by the movement of the said lever to frictionally bind upon the projections, substantially as described.

4. In a vise, the combination with jaws and means to close the same, of holding means therefor comprising the swinging bars connected to the jaws and having projecting pins, the inclines upon which the bars strike to canse lateral movement thereof, levers having friction contact with the pins, and the wedge-plate bearing with friction between the levers and one of the jaws and connected to the actuating means of the vise, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES NV. ORVIS.

Witnesses:

B. R. WEsooTr, GEO. L. GARVUTTE. 

